Strategic Technology Transactions, Goodwill and Other Purchased Intangible Assets - Purchased Intangible Assets, Subject to Amortization (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 29, 2014	Dec. 28, 2013
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 64,627	$ 64,468
Accumulated Amortization	27,671	25,536
Rasco Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	33,693	33,689
Accumulated Amortization	22,405	21,319
Ismeca Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	30,070	29,915
Accumulated Amortization	4,786	3,809
Duma Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	864	864
Accumulated Amortization	$ 480	$ 408